buer | e173a639506cfac3f65723d711ad072d18b95f2776581d43407e1ffb6bec441f

Analysis

max time kernel
113s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/09/2024, 04:50

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General

Target

f539613bb8aa110f64481c22d073f510_JaffaCakes118.exe
Size

236KB
MD5

f539613bb8aa110f64481c22d073f510
SHA1

c961c5aec12d17d0e6427bb2886619d604947c9a
SHA256

e173a639506cfac3f65723d711ad072d18b95f2776581d43407e1ffb6bec441f
SHA512

dba51c39a1d9f8cfe9d2a9b1cd9b06cb25f8bc60d3cae43105bb32cee0e7ff96960bd2438d4ee6e641a1416c05a5c67036696e195bb9f1cf17e49ebf158fc276
SSDEEP

3072:sR9HSUA9Au2+coOnrvBcopuYYtZRsROxO1fcjBN27oZV3DwdOwUqx+LR3:49HdA9A1oyTBcop1jQxO98bvUUqcF

Score

10^/10

buer discovery loader

Malware Config

Extracted

Family

buer

https://gstatiknetiplist.cc/

https://gstatiknetiplist.com/

Signatures

Buer
Buer is a new modular loader first seen in August 2019.
loader buer

Buer Loader 7 IoCs

Detects Buer loader in memory or disk.

loader

resource	yara_rule
behavioral2/memory/1696-2-0x00000000001C0000-0x00000000001CA000-memory.dmp	buer
behavioral2/memory/1696-3-0x0000000040000000-0x000000004000C000-memory.dmp	buer
behavioral2/memory/1696-4-0x0000000040000000-0x0000000042824000-memory.dmp	buer
behavioral2/memory/1696-6-0x00000000001C0000-0x00000000001CA000-memory.dmp	buer
behavioral2/memory/1696-7-0x0000000040000000-0x000000004000C000-memory.dmp	buer
behavioral2/memory/1696-18-0x0000000040000000-0x000000004000C000-memory.dmp	buer
behavioral2/memory/1696-17-0x0000000040000000-0x0000000042824000-memory.dmp	buer

Executes dropped EXE 1 IoCs

pid	Process
864	responder.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1496	1696	WerFault.exe	81

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f539613bb8aa110f64481c22d073f510_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	responder.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1696 wrote to memory of 864	1696	f539613bb8aa110f64481c22d073f510_JaffaCakes118.exe	91
PID 1696 wrote to memory of 864	1696	f539613bb8aa110f64481c22d073f510_JaffaCakes118.exe	91
PID 1696 wrote to memory of 864	1696	f539613bb8aa110f64481c22d073f510_JaffaCakes118.exe	91

C:\Users\Admin\AppData\Local\Temp\f539613bb8aa110f64481c22d073f510_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f539613bb8aa110f64481c22d073f510_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1696
- C:\ProgramData\ErrorResponder\responder.exe
  C:\ProgramData\ErrorResponder\responder.exe "C:\Users\Admin\AppData\Local\Temp\f539613bb8aa110f64481c22d073f510_JaffaCakes118.exe" ensgJJ
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:864
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1696 -s 436
  2⤵
  - Program crash
  PID:1496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1696 -ip 1696
1⤵
PID:4900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\ErrorResponder\responder.exe

Filesize
236KB

MD5
f539613bb8aa110f64481c22d073f510

SHA1
c961c5aec12d17d0e6427bb2886619d604947c9a

SHA256
e173a639506cfac3f65723d711ad072d18b95f2776581d43407e1ffb6bec441f

SHA512
dba51c39a1d9f8cfe9d2a9b1cd9b06cb25f8bc60d3cae43105bb32cee0e7ff96960bd2438d4ee6e641a1416c05a5c67036696e195bb9f1cf17e49ebf158fc276

Download Submit
memory/1696-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/1696-2-0x00000000001C0000-0x00000000001CA000-memory.dmp

Filesize
40KB

Download
memory/1696-3-0x0000000040000000-0x000000004000C000-memory.dmp

Filesize
48KB

Download
memory/1696-5-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/1696-4-0x0000000040000000-0x0000000042824000-memory.dmp

Filesize
40.1MB

Download
memory/1696-6-0x00000000001C0000-0x00000000001CA000-memory.dmp

Filesize
40KB

Download
memory/1696-7-0x0000000040000000-0x000000004000C000-memory.dmp

Filesize
48KB

Download
memory/1696-18-0x0000000040000000-0x000000004000C000-memory.dmp

Filesize
48KB

Download
memory/1696-17-0x0000000040000000-0x0000000042824000-memory.dmp

Filesize
40.1MB

Download